Too good of a clean

A museum janitor decided to scrub a giant stain off the museum floor, only to find out later that it was part of a $1.1 million art installation that was on loan to the museum from a private collector, the article stated.

According to the article, the piece, by late artist Martin Kippenberger, was called "When It Starts Dripping From the Ceiling."

"The late contemporary master had created a tower of wooden slats under which a rubber trough was placed with a thin beige layer of paint representing dried rain water," said a museum spokeswoman.

"It is now impossible to return it to its original state," the spokeswoman added.

Reportedly, "cleaning crews had orders to remain 20 centimeters (eight inches) away from artworks, but it was unclear if the woman had received the directive from the external company that employed her," the article noted.